Blue Dot Trail is a hiking trail in Littleton, Massachusetts. It is within Farm Pond (dead end), Cobbs Woods, Nagog Hill Orchard, Nagog Hill Orchard Extension, Long Lake Park, George and Lucy Yapp Conservation Land, and Shaker Lane School Land. It is 3.1 miles long and begins at 245 feet altitude. Traveling the entire trail is 4.5 miles with a total elevation gain of 340 feet. The Farm Pond (dead end) conservation is near the trailhead. The Fort Rock viewpoint can be seen along the trail. Near the end of the trail is a wetland.
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